18720072

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{4127}}^1$

素因数の和:4152

約数の個数: 80

約数和(自身を含む): 59938560

約数和(自身を除く): 41218488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4127, 4536, 8254, 12381, 16508, 24762, 28889, 33016, 37143, 49524, 57778, 74286, 86667, 99048, 111429, 115556, 148572, 173334, 222858, 231112, 260001, 297144, 334287, 346668, 445716, 520002, 668574, 693336, 780003, 891432, 1040004, 1337148, 1560006, 2080008, 2340009, 2674296, 3120012, 4680018, 6240024, 9360036, 18720072]

約数ペア:

[(1, 18720072), (2, 9360036), (3, 6240024), (4, 4680018), (6, 3120012), (7, 2674296), (8, 2340009), (9, 2080008), (12, 1560006), (14, 1337148), (18, 1040004), (21, 891432), (24, 780003), (27, 693336), (28, 668574), (36, 520002), (42, 445716), (54, 346668), (56, 334287), (63, 297144), (72, 260001), (81, 231112), (84, 222858), (108, 173334), (126, 148572), (162, 115556), (168, 111429), (189, 99048), (216, 86667), (252, 74286), (324, 57778), (378, 49524), (504, 37143), (567, 33016), (648, 28889), (756, 24762), (1134, 16508), (1512, 12381), (2268, 8254), (4127, 4536)]